baber/WOPTO huggingface dataset:
Patent KR-20030007473-A (KR)
Title: Robot for vacuum cleaning surfaces via a cycloid movement
IPC: B62D15/00
Filed: 2002-01-17
Abstract: The invention relates to a robot vacuum cleaner for cleaning surfaces (9), which robot vacuum cleaner is provided with a housing (1), a suction unit (3) accommodated in said housing, a suction nozzle (7) mounted to the housing so as to be present near the surface in operation, a motor-drivable wheel system (13) by means of which the housing can be displaced over the surface, and an electrical control unit (17) for controlling a displacement of the housing generated by means of the wheel system. According to the invention, the displacement of the housing controlled by the control unit (17) comprises a substantially cycloid movement brought about by a rolling movement of an imaginary rolling circle (37) along an imaginary line of displacement (39) of the housing over the surface, said imaginary rolling circle extending parallel to the surface (9) and being fixed with respect to the housing (1), and the suction nozzle (7) being eccentrically arranged with respect to the rolling circle. As a result, the width of the track cleaned by the suction nozzle during the displacement of the robot along the line of displacement is considerably larger than the main dimension (WS) of the suction nozzle.
Patent KR-20020095192-A (KR)
Title: 디스플레이 디바이스
IPC: G09G3/20
Filed: 2001-12-20
Abstract: IC는 예컨대 버스 구조 안에 또는 열과 행의 교차 지점에서 캐리어에 부착된다. 분리된 결정은 복잡한 전자회로(메모리 안의 픽셀의 어드레스 + 식별정보)를 포함할 수 있다.
Patent KR-20020091267-A (KR)
Title: 경수에서 분산될 수 있는 이온 감응성 중합체 및 이들의응용
IPC: D06M15/285
Filed: 2001-05-03
Abstract: 본 발명은 이온 감응성, 경수분산성 중합체에 관한 것이다.  또한, 본 발명은 이온 감응성, 경수분산성 중합체의 제조 방법 및 결합제 조성물로서의 이들의 응용에 관한 것이다.   아울러, 본 발명은 이온 감응성, 경수분산성 결합제 조성물을 함유한 섬유 함유 패브릭 및 웹 및 수분산성 개인용 위생 제품에서 이들의 응용에 관한 것이다.
Patent KR-20040062789-A (KR)
Inventor: CHO YU SEONG
IPC: F25D11/02
Filed: 2003-01-03
Abstract: PURPOSE: An apparatus for manufacturing yogurt in a refrigerator is provided to manufacture yogurt in a refrigerator and keep the manufactured yogurt in succession, thereby improving the convenience of a user. CONSTITUTION: A heater(44) is installed at a bottom of a home bar(42) installed at a door(40) for generating fermentation heat necessary for fermentation of milk. A temperature sensor(45) is mounted to measure a temperature around the heater. A fermentation container(46) receiving milk is put on a heater formed part. A heat insulation cover(47) is combined with the bottom of the home bar, receiving the fermentation container, the heater, and the temperature sensor inside to maintain a heat-insulated state.
Patent KR-20040065026-A (KR)
Inventor: JANG HYEON JIN
IPC: H01L21/28
Filed: 2003-01-13
Abstract: PURPOSE: A method for forming a contact hole for a plug of a semiconductor device is provided to reduce contact resistance by forming a metal silicide layer between an N-type junction region and the plug. CONSTITUTION: A gate insulating layer and a word line(140) are sequentially formed on a substrate(100) with an isolation layer(120). An N-type junction region(160) is formed in the substrate. A spacer(180) is formed at both sidewalls of the word line. By forming an interlayer dielectric(200) and patterning, a contact hole is formed to expose the junction region. P+ doping region(220) is formed in the exposed junction region. A plug(280) is formed in the contact hole. At this time, a metal silicide layer(260) is formed between the junction region and the plug.
Patent KR-20040065700-A (KR)
Inventor: LEE KWAN SOO
IPC: E06B7/00
Filed: 2003-01-15
Abstract: PURPOSE: A mosaic puzzle board for a window glass is provided to enjoy the sight and the sound of pictures vividly by adding the speaker, and to play puzzle games together inside the building without staying outdoors by mounting the puzzle board to the window. CONSTITUTION: A mosaic puzzle board is installed to a window glass of a building according to the size of the window glass. The window tinted film is mounted on the window glass, and the adhesive rubber is bonded to the rear part of the mosaic puzzle board installed to the window. Pictures are attached to the mosaic puzzle board of the window glass, and an alarm and a sound speaker are installed to the lower part of the mosaic puzzle board. Pictures with sound effect are appreciated with the mosaic puzzle board, and the puzzle games are enjoyed indoors.
Patent KR-20050083183-A (KR)
Inventor: UM HO DONG
IPC: G06Q30/06
Filed: 2003-01-27
Abstract: 본 발명은 컨텐츠 딜리버리 네트워크 사이트에서 카탈로그, 책, 앨범등을 통한 이미지 기반의 데이타베이스를 구축하고 각각의 이미지에 구매코드를 부여하며, 이를 컨텐츠 딜리버리 네트워크에 연결된 디지털 셋탑 박스를 통하여 텔레비젼에 디스플레이하고 시청자는 리모콘을 통하여 상기 이미지를 검색, 열람하고 구매, 결제하는 이미지 기반의 구매 시스템 및 방법에 관한 것으로, 카탈로그, 책, 앨범등의 이미지를 데이터베이스화하고 각각의 이미지에 구매코드를 부여하여 서비스하는 컨텐츠 공급자와, 컨텐츠 딜리버리 네트워크에 연결되고, 텔레비젼의 디스플레이를 통제하며 포인터를 구현하여 제공하며, 카드리더기등의 결제 수단을 제공하는 디지털 셋탑박스와,디지털 셋탑박스를 통하여 텔레비젼의 각종 기능을 조정하며 포인터를 이동하고 클릭할 수 있는 리모콘과, 상기의 디지털셋탑박스에서 제공하는 화면을 디스플레이할 수 있는 텔레비젼으로 이루어져 종래의 텍스트 기반을 위주로 하는 구매와는 달리 이미지 기반하에 편리하게 구매할 수 있도록 하고, 안전한 결제를 제공하며, 컴퓨터에 불편한 사람들에게 텔레비젼과 리모콘을 조작하여 쇼핑을 할 수 있는 환경을 제공한다.
Patent KR-20030021191-A (KR)
Title: Method for making packaging container using paper tube
Inventor: PARK HA RYUNG
IPC: B65D3/04
Filed: 2003-01-25
Abstract: PURPOSE: A method for making a packaging container using a paper tube is provided to separately package two different kinds of commodities in one body. CONSTITUTION: A first packaging chamber bottom rear face(20-1) is formed at a predetermined position along the inner periphery of a body upper end(10-1). A second packaging chamber bottom rear face(30-1) is formed at a predetermined position along the inner periphery of a body lower end(10-2). The first and second packaging chamber bottom rear faces(20-1,30-1) are formed to face each other at a predetermined position of the inner periphery of a body(10), thereby forming first and second packaging chambers(20,30) separately in the body(10).
Patent KR-20040070633-A (KR)
Inventor: KIM TAE HUN
IPC: H01L21/02
Filed: 2003-02-04
Abstract: PURPOSE: An exhaust tube of a trap device is provided to prevent lamination of ionized powders on the ionized exhaust tube by applying the electric power to the exhaust tube. CONSTITUTION: An exhaust tube(320) of a trap device(300) is installed between a vacuum pump(310) and an exhaust gas processing system in order to transfer the exhaust has of the vacuum pump to the exhaust gas processing system. A tube(322) is installed at the inside of the exhaust tube in order to form a dual tube to the longitudinal direction. A power supply(340) is connected to plural points of the tube in order to supply the power from the outside. A purge gas tube(324) is installed at one side of the exhaust tube in order to supply nitrogen purge gas.
Patent KR-20040072875-A (KR)
Title: Storage using nand flash memory
Inventor: KIM JONG SIK
IPC: G06F12/00
Filed: 2003-02-11
Abstract: PURPOSE: A storage using a NAND flash memory is provided to prevent a phenomenon that a link of a file is broken when a bad block is generated in the flash memory, increase a process speed, reduce a frequency for generating the bad block, and make various specifications of flash memories compatible with a file system of a PC. CONSTITUTION: A mapping block area(12) comprises the mapping blocks storing mapping information. A table block area(14) comprises the data blocks storing data and mapped by an external system. A free block area(16) comprises the remaining area except the mapping blocks and the data blocks. Each page included in each mapping block includes a mapping region(30) formed by the first items to record the mapping information including the physical address information of each data block, and a mapping alteration region(35) including the second mapping table formed by the second items to record the mapping alteration information including the altered physical address information when the physical address information of each data block is altered.
Patent KR-20040072321-A (KR)
Inventor: KIM YU JONG
IPC: H01J1/304
Filed: 2003-02-12
Abstract: PURPOSE: A method is provided to achieve improved brightness and uniformity of luminance, and effectively form emitters by preventing an internal electrical short. CONSTITUTION: A method comprises a step of preparing a substrate structure where a cathode electrode(20) is formed on a substrate(10), and a gate insulating layer(30) having a through hole for partially exposing the cathode electrode and a gate electrode(40) having a gate hole are formed on the cathode electrode; a step of forming a sacrificial layer(60) on the surface of the substrate structure and the inner wall of the through hole, excluding the cathode electrode exposed from the bottom of the through hole; a step of forming an isolating layer(70) on the sacrificial layer so as to prevent contact between an electron emitting material and the sacrificial layer; a step of forming an electron emitting material layer(50) for burying the through hole with the electron emitting material by depositing an electron emitting material on the surface of the substrate structure where the sacrificial layer is formed; a step of removing the isolating layer and the electron emitting material, and forming an emitter at the inside of the through hole; and a step of firing the emitter.
Patent KR-20040073053-A (KR)
Inventor: LEE BYEONG GYO
IPC: G06Q30/00
Filed: 2003-02-13
Abstract: PURPOSE: A method for offering a fortune-telling message using a credit card slip is provided to consult fortune on the credit card slip without inputting personal information when a user pays price with a credit card. CONSTITUTION: The credit card is read by a card checker of a member shop. The customer information read by the card checker is transmitted to a main computer of a VAN(Value Added Network) company equipped with a fortune-telling program. The main computer transmits the customer information to a card company. The card company judges an approval for the card use by checking a credit state of the user and transmits a result to the main computer. The fortune-telling program selects the fortune of the user by using the information received from the card company, and transmits the fortune information and the information received from the card company to the card checker. The card checker prints the fortune of the user to the credit card slip.
Patent KR-20030069102-A (KR)
Title: 구동력 전달기구 및 그것을 구비한 댐퍼장치
IPC: H02K37/24
Filed: 2003-02-17
Abstract: 본 발명의 과제는 종동자의 동반회전을 방지하는 데 적정한 저지력을 발휘하고 또한 종동차도 회전구동하는 연동구간에 있어서 토오크의 증대나 마모 등의 문제가 발생하지 않는 구동력 전달기구 및 그것을 구비한 댐퍼장치를 제공하는 것을 그 과제로 한다. 
     이를 해결하기 위한 수단으로 댐퍼장치(1)에는 제 2구동치차(26)와 일체로 회전하는 캠부재(8)와, 캠부재(8)의 캠면(81)에 탄성을 갖고 접촉하는 판스프링(9)이 이용되고 있다.  캠면(81)에는 소경부분(821)(822)과 원호부분(83)이 형성되고 또한 그것들의 각 사이에는 소경부분(821)(822)과 원호부분(83)을 단차를 형성하지 않고 연접시키는 능부분(841)(842)이 형성된다.  따라서 캠면(81)과 판스프링(9)과의 접촉위치가 소경부분(821)(822)측에서 능부분(841)(842)가 형성된다.  따라서 캠면(81)과 판스프링(9)과의 접촉위치가 소경부분(821)(822)측에서 능부분(841)(842)를 거쳐 원호부분(83)측으로 이동하고자 했을 때 발생하는 부하에 의해 제 2구동치차(26)의 동반회전을 저지할 수 있다.
Patent KR-20030022243-A (KR)
Inventor: HAN MIN HO
IPC: E21D9/00
Filed: 2003-02-21
Abstract: PURPOSE: A process and an apparatus for forcing press-in of steel pipe having less diameters ranging of 800-1350mm called KY-10 process to apply domestic construction work condition in Korea. CONSTITUTION: The KY-10 apparatus comprises a progression device(E) to press a steel pipe into a soil layer(I) behind a road(H); a spiral steel pipe(G) located at front side of the device(E); a force-leading tube(F) connected on front side of the spiral steel pipe(G) and fixed by a direction control device(C); a chair(1) with wheels(14) for an operator; an excavation device(A) at front side of the chair(1); three wire-movement devices(13); three wire movement rails(12); a soil and earth discharging device(B) formed behind the excavation device(A); and a soil and earth disposal device(J) behind the progression device(E).
Patent KR-20030069888-A (KR)
Title: 기판 맞붙임 장치 및 기판 맞붙임 방법
IPC: G02F1/13
Filed: 2003-02-21
Abstract: 챔버(2)내의 진공을 빼는데 있어, 진공 펌프(82)에 연속해 있는 밸브(8a)의 개폐도를 제어하고, 배관(81)의 흡입 저항이 대(大)로부터 소(小)로 변화하도록 제어하고, 진공 빼기 개시시의 배기류의 흐름을 억제한다.  또한, 챔버(2)내의 대기압으로 되돌리는 조작(진공 파괴)에 있어서, 복귀용 밸브(9a)의 제어에 의해, 챔버(2)내에 유입하는 기체의 유입 저항을 대로부터 소로 변화시켜, 진공 파괴 당초의 챔버(2)내에 유입하는 기체량의 억제를 도모한다.  이에 따라, 진공을 빼는데 있어, 또한 진공 파괴에 있어, 챔버(2)내의 기류의 흐름을 완화시킬 수 있으므로, 챔버(2)내에서 먼지나 티끌이 흩날려 기판에 부착되어, 그 전기적 특성을 열화시키는 것을 회피하여, 품질이 좋은 부착 기판을 수율 좋게 제조할 수 있다.
Patent KR-20040076767-A (KR)
Inventor: CHO IL HWAN
IPC: A01G9/24
Filed: 2003-02-26
Abstract: PURPOSE: A system is provided for detecting and removing fog produced within the horticultural equipment. It has effects of easily removing fog, improving working convenience and increasing productivity. CONSTITUTION: The fog removing system for the horticultural equipment(1) comprises: a sensor part(10) installed at the center of the horticultural equipment to detect temperature, an amount of solar radiation and fog respectively; a ventilation fan(20) for discharging the fog produced within the horticultural equipment to the outside; and a controller(30) having a built-in microprocessor for the outputting a control signal to drive the ventilation fan.
Patent KR-20040079706-A (KR)
Inventor: JANG MIN SU
IPC: B60R21/21
Filed: 2003-03-10
Abstract: PURPOSE: A housing for a side airbag is provided to prevent the deformation caused by internal stress by coupling a coupling piece formed at a first cover to a second cover. CONSTITUTION: A housing for a side airbag is composed of a first cover(20), a second cover(30), and a connecting member connecting the first and second covers. The connecting member includes a coupling piece(21) formed at one side of the first cover, a plurality of through holes(22) formed at the coupling piece, and a plurality of coupling holes(32) formed at one side of the second cover. A coupling unit is inserted into the through hole and the coupling hole, and couples the first cover to the second cover.
Patent KR-20040010067-A (KR)
Inventor: IDO YASUHIRO
IPC: H01L23/525
Filed: 2003-03-21
Abstract: PURPOSE: To cut an objective fuse while suppressing damage to an adjacent fuse when cutting the fuse formed on a semiconductor device. CONSTITUTION: The semiconductor device is provided with a substrate, a fuse that can be cut by giving light, and an insulation film that is formed above the fuse and the substrate. In addition, the insulation film is provided with a flat part that is arranged above the substrate and is formed so that its surface is formed above the surface of the fuse, and a projecting part that is formed continuous with the flat part above the fuse and is projected over the surface of the flat part.
Patent KR-20030077411-A (KR)
Title: 필름 포장기
IPC: B65B11/08
Filed: 2003-03-24
Abstract: (과제) 피포장물의 두께나 길이, 필름의 재질이나 필름 롤의 직경 등의 변동이 있다 하더라도 확실하게 또한 원활하게 피포장물을 필름으로 포장할 수 있는 필름 포장기를 제공한다. 
     (해결수단) 선단부가 서로 용착된 필름 사이에 끼워진 피포장물을 반송하는 반송장치(20)의 양측에 설치되어 상기 필름의 좌우 양 측부를 용착하는 측부용착장치를 구비한 필름 포장기에 있어서, 측부용착장치(50)는, 판형상의 접착히터(51)와 이 접착히터(51)의 선단부에 대향하는 쿠션재(52)를 서로 접근ㆍ이간하도록 승강 가능하게 지지하여 이루어지고, 반송장치(20)의 반송면(U)보다도 소정 높이(H)만큼 높은 상측위치에서 필름을 접착히터(51)와 쿠션재(52)로 집어서 용착하도록 하였다.
Patent KR-20040084143-A (KR)
Inventor: CHOI SANG BAE
IPC: F23N5/10
Filed: 2003-03-26
Abstract: PURPOSE: An adapter for a fire safety device of a gas burner device is provided to simply couple a control circuit unit for forcibly extinguishing a gas burner device or putting out a fire by remote control between a thermocouple and an electromagnet without the loss of electromotive force and violation of gas safety regulations. CONSTITUTION: An adapter(300) for a fire safety device of a gas burner device is composed of a body, input and output terminals, and a grounding unit. The body comprises upper and lower cases(311,312) detachably combined to each other; a space unit(310a) opened to one end to detachably fix a connection member joined to the end of a grounding conductor and an electromotive force conductor linked to a thermocouple; and a pair of fixing units(313,314) formed at the other end and detachably settled to a magnetic power unit. The input terminal is electrically coupled to an input unit of a control circuit unit, fixed to the space unit of the body, and linked with the electromotive force conductor as the connection member is fixed in the space unit to receive the electromotive force generated from the thermocouple. The output terminal is fixed to one fixing unit of the body with being electrically coupled to an output unit of the control circuit unit and coupled with an electromagnet as one fixing unit is fastened to the magnet power unit to output the electromotive force passing through the control circuit unit to the electromagnet. The grounding unit comprises a first grounding terminal(341) installed and spaced from the input terminal in the space unit of the body and coupled with the grounding conductor in fixing the connection member and a second grounding terminal(342) fixed to the other fixing unit of the body with being electrically coupled to the first grounding terminal and connected with the grounding conductor of the electromagnet in fixing the other fixing unit to the magnet power unit.
Patent KR-20030078803-A (KR)
Title: 마커의 선택
IPC: G16B20/00
Filed: 2003-03-29
Abstract: 본 발명은, 진단 매개변수를 한정하고 매개변수가 최적화되도록 매개변수간 관계식을 설정하며 진단 적용에 대해 최적인 마커 그룹을 선택함을 포함하여, 진단 적용에 사용하기 위한 마커의 포트폴리오 선택방법에 관한 것이다.  진단 매개변수는 유전자의 상대적 발현도의 척도 및 유전자의 발현도의 측정시의 변화량 척도를 포함하며, 진단 및 판별 매개변수간 관계식은 평균 변화량 관계식일 수 있다. 
     본 발명의 추가 양태는 본 방법을 실행하도록 프로그램된 기기 및 이의 작동을 위한 지시사항을 포함하는 제품이다.
Patent KR-20040085569-A (KR)
Inventor: RYU GANG SOO
IPC: H04R9/02
Filed: 2003-03-26
Abstract: PURPOSE: An ultra slim speaker, in which FPCB is laminated and thin permanent magnet is used, thereby reducing a speaker size. CONSTITUTION: An ultra slim speaker includes a flexible printed circuit board(1,2,3,4) and a backside plate(5). Each of the flexible printed circuit boards(1-4) is laminated by etching a copper layer in a spiral shape after the copper layer is attached to a vibrational plate(12), a vibration preventing packing(11) and a permanent magnet(13). The ultra slim speaker further includes an amplifier for amplifying the outputs of the acoustic device and a plurality of connection lines(14,14-1).
Patent KR-20030079757-A (KR)
Title: 액정 표시 장치 및 그 평가 방법
IPC: G02F1/1343
Filed: 2003-04-02
Abstract: 본 발명의 액정 표시 장치는 컬러 필터의 제조 공정상의 복잡함을 야기시키지 않고도 색도의 얼룩(예컨대, 적색의 얼룩)이 발생하는 것을 방지한다. 스위칭 소자는 제1의 기판상에 형성된다. 컬러층은 제2의 기판상에 형성된다. 컬러층은 적색 서브층 및 청색 서브층을 포함한다. 액정층은 상기 제1의 기판과 상기 제2의 기판 사이에 위치한다. 상기 제2의 기판은 컬러층에 대하여 액정층에 보다 근접한 변상에 위치하도록 형성된 전극을 포함하지 않는다. 녹색 서브층을 형성하는 녹색 착색 조성물은 구리-프탈로시아닌(copper phthalocyanine) 골격을 갖는 안료를 함유한다. 상기 녹색 착색 조성물에 대한 상기 안료의 중량비는 개략 27% 이하이다.
Patent KR-20040087519-A (KR)
Inventor: HONG GYEONG CHEOL
IPC: H04N9/77
Filed: 2003-04-08
Abstract: PURPOSE: A device for compensating for color coordinates in an LCD projector is provided to use statistics or a method for detecting substantial changes in an image to compensate for abnormal color coordinates caused by changes of optical transmissivity, thereby maintaining uniform image quality. CONSTITUTION: A blue LCD(22), a red LCD(23), and a green LCD(24) are comprised. A driver(21) drives the blue, red, and green LCDs(22,23,24) according to an input signal. A projection lens(25) projects outputs of the blue, red, and green LCDs(22,23,24) on a screen. A color coordinate compensator(26) generates a calibrating constant in accordance with usage time of an LCD projector and an optical transmissivity inclination value of the blue LCD(22), and outputs the generated calibrating constant. An operator(27) operates the output of the color coordinate compensator(26) to red and green signals, and inputs compensated red and green signals to the driver(21).
Patent KR-20040088130-A (KR)
Inventor: OKIYAMA MASAYOSHI
IPC: H05B33/10
Filed: 2003-04-09
Abstract: PURPOSE: A heating vessel of an organic layer formation apparatus is provided to prevent recrystallization of organic materials around a nozzle by separating the nozzle from a heater. CONSTITUTION: A main body is used for storing organic materials and includes an open top part and a heating unit. A cover is coupled to the open top part of the main body in order to seal up the main body. A plate-shaped heater(50) is installed on a top side of the cover in order to cover an opening part of the cover and includes a nozzle coupling part. A nozzle(52) is coupled to the nozzle coupling part in order to discharge the organic materials.
Patent KR-20040091927-A (KR)
Inventor: JUNG SEONG GI
IPC: B05B15/02
Filed: 2003-04-23
Abstract: PURPOSE: A cleaning unit, a coating apparatus having the cleaning unit, and a coating method are provided to improve cleaning efficiency and enhance efficiency of a coating process. CONSTITUTION: A cleaning unit(100) cleans a slit coater(200), which coats a predetermined material on a substrate, through a hole formed at a slit nozzle(220). The cleaning unit includes an accommodation unit(120) depressed from one side of the cleaning unit by a predetermined depth, a body(110) having the first spray hole(140), and a cleaning member. The first spray hole is formed on the inner wall of the accommodation unit to spray a cleaning solution to the slit nozzle. The cleaning member is placed on the bottom of the accommodation unit and comes into contact with the slit nozzle to remove particles attached to the slit nozzle.
Patent KR-20040092124-A (KR)
Inventor: KIM GI HO
IPC: H04W16/00
Filed: 2003-04-25
Abstract: PURPOSE: A method for installing a home wireless communication antenna is provided to quickly and accurately determine a position for installing an antenna and perform smooth communication without causing an interference with the outside. CONSTITUTION: Two horizontal lines are drawn on a drawing(100). Central points with respect to cross points of the horizontal lines and a wall are searched and vertical lines are drawn(102). Two lines, located at the center, from vertical lines that can be transmitted in the wall are selected from vertical lines that can be transmitted in the wall (104). Vertical lines are drawn on the drawing(106). Central points with respect to cross points of the vertical lines and a wall are searched and horizontal lines are drawn(108). A center of a square formed by the two horizontal and vertical lines is searched for installation of an antenna(110). A tilting angle of the antenna and a height of the antenna from the bottom are determined(112). The antenna is installed at the corresponding position(114).
Patent KR-20030041120-A (KR)
Inventor: YOON YEO JIN
IPC: G08G1/16
Filed: 2003-04-30
Abstract: PURPOSE: A vehicle collision prevention apparatus is provided to enable a rear driver to recognize a danger by making an alarm lamp of a rear vehicle operated when an alarm lamp of a front vehicle is operated. CONSTITUTION: An emergency alarm lamp switch is installed at a vehicle and is used at a breakdown or an emergent situation. An RF transmitter is operated by an on/off signal of the emergency alarm lamp switch. A receiver receives an RF synchronous signal. A wireless direction detector detects a wireless direction of the received RF synchronous signal, and a central processing part judges an identity of a progressive direction. A controller controls an emergency alarm lamp relay according to a control signal of the central processing unit. A direction indication lamp is configured to twinkle.